﻿using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class Lesson23 : MonoBehaviour
{
    public Image img;
    void Start()
    {
        //像素点alpha值小于了此值,不会被射线检测了
        img.alphaHitTestMinimumThreshold = 0.1f;
    }
}
